: , , , (. 5). , , , (. 6).
[13].
, :
)
∆p = ζ ∙ ρ ∙ (ω 2 / 2) ∙ 10 5 ; (1.1)
)
∆p = ζ ∙ (ρ / 2) ∙ (1 / F2) ∙ Q2 ∙ 10 5 ; (1.2)
)
∆p = ζ ∙ (1 / 2) ∙ (1 / ρ) ∙ (1 / F2) ∙ G2 ∙ 10 5 . (1.3)
L , :
)
∆p = λ ∙ (L / d) ∙ ρ ∙ (ω 2 / 2) ∙ 10 5 ; (1.4)
)
∆p = λ ∙ (L / d) ∙ (ρ / 2) ∙ (Q2 / F2) ∙ 10 5 (1.5)
)
∆p = λ ∙ (L / d) ∙ (1 / 2) ∙ (1 / ρ) ∙ (1 / F2) ∙ G2 ∙ 10 5 . (1.6)
: ζ , ; ρ , , /3; ω (ω = Q / F), /; F ( ), 2; Q , 3/; G , /; L , ; d = 4∙F/ , ; , ; λ = 0,11∙ (68 / Re + ∆ / d)0,25 (Re > Re*); Re* ≈ 2300 ; Re = (ω ∙ d) / ν ; ν , 2 / .
, , ( ) , [13] , :
∆p = ζ ∙ ρ ∙ (ω 2 / 2) ∙ 10 5, (1.7)
: ζ = 0,03 ¸ 0,1 , [13]; ρ [14] , /3; ω = 80 ¸ 100 , /.
|
|
, , , :
p1 = p ∆p = p (∆p + ∆p + ∆p + ∆p). (1.8)
(), , , :
T1 = (p1 ∙ 102) / (R ∙ ρ), t1 = T1 273,15 OC, (1.9)
: p1 ; T1 K; ρ /3; R = 0,28715 /(∙).
. 5. () -110:
; ; ; . -; ; . ( )
. 6. h,s - ( ): : ; 1 ( ); , ; ; . ;